Effects of iron ore Particle size on the Quality of Pellets

Effects Of Iron Ore Particle Size On The Quality Of Pellets

Influence of raw material particle size on quality of pellets

Oct 26, 2010 · To produce good quality of pellets certain additives are important and limestone is employed for modifying the pellet basicity. Iron ore fines of −10 mm size and limestone are ground together in a ball mill to get sufficient fineness for the balling process.

THE EFFECT OF PARTICLE SIZE ON GREEN PELLET PROPERTIES …

ores. This study deals with the beneficiation and agglomeration of the low grade iron ore; up to the extent such that it becomes an ideal blast furnace feed. Effect of particle size on pellet quality during pellet making has also been aimed and studied along with the development of flowsheet for beneficiation of low grade iron ore.

(PDF) The effect of particle size on green pellet ...

Effect of particle size on pellet quality during pellet making has a lso been aimed and studied along with the development of flowsheet for beneficiation of low grade iron ore.

effects of iron ore particle size on the quality of pellets

iron ore with particle size 25 ~48 µm was appropriate for the reduction of iron ore-coal composite pellets in the experimental conditions, and particle size 75 ~106 µ m and 150 ~180 µ m were insufficient to complete the reduction.

Influence of raw material particle size on quality of ...

An effect of a grinding method, that is ball mill and high pressure grinding rolls (HPGR), on the particle size, specific surface area and particle shape of an iron ore concentrate was studied.

Effect of particle size on reduction behavior in iron ore ...

iron ore with particle size 25 ~48 µm was appropriate for the reduction of iron ore-coal composite pellets in the experimental conditions, and particle size 75 ~106 µ m and 150 ~180 µ m were insufficient to complete the reduction.

Compression Tests Iron Pellets

These pellets are formed by disk pelletizing of a mixture consisting of hematite iron ore, (particle size less than 50 µm) water, and lime; they are hardened in a traveling-grate furnace and the nominal diameter varies between 9 and 16 mm. The pellets were tested at ambient temperature in a Tinius-Olsen and in a Riehle universal testing machine.

Effect of Fluxing Agents on the Quality and Microstructure ...

Indian iron ore fines with high alumina content (~2.5% Al 2 O 3 ) resulted in poor quality pellets and a study was under taken to establish suitable pellet chemistry through proper fluxing agents. Limestone fluxed pellets were prepared at varying basicity (0 to 0.8) and pyroxenite fluxed pellets at varying MgO contents (0 to 3%) to study their effect on the metallurgical properties.

FACTORS INFLUENCING MATERIAL LOSS DURING IRON ORE …

Iron ore concentrate pellets have the potential to fracture and abrade during transportation and handling, which produces unwanted fine particulates and dust. Consequently, pellet

Pelletizing - Wikipedia

Iron ore pellets are spheres of typically 6–16 mm (0.24–0.63 in) to be used as raw material for blast furnaces. They typically contain 64%-72% Fe and various additional material adjusting the stone composition and the metallurgic properties of the pellets. Typically limestone, dolomite and olivine is added and Bentonite is used as binder.

EFFECT OF SIZE OF IRON ORE PELLETS ON ITS REDUCTION …

We can conclude that as we increase the size of iron ore pellet, this results in decrease in the reducibility of iron ore pellets. The most o ptimal size range for reducibility to be

Iron Ore Pellets and Pelletization Process – IspatGuru

Nov 26, 2014 · The addition of lime (CaO) to the iron ore fines slightly decreases the productivity of green pellets, but increases the drop resistance and the compressive strength of green pellets. Further the strength of the pellets is directly proportion with the shrinkage that takes place during firing of the pellets.

1990 Fundamental study of pore formation in iron ore ...

pore formation and the final pore structure, such as limestone particle. size, coke particle size, iron ore particle size, amount of limestone, temperature and initial porosity, etc I.t was also found that the air flow. through the sintering bed was very unlikely to cause any pores to form. in sinter.

Effect of Blaine Fineness on the Quality of Hematite Iron ...

Aug 12, 2018 · Effect of Blaine Fineness on the Quality of Hematite Iron Ore Pellets for Blast Furnace. The stone presents the effect of Blaine number on green and dry strength, cold crushing strength, reducibility index, reduction degradation index, swelling index, apparent porosity, optical micro structure, etc. of the high alumina hematite ore pellets.

IMPROVEMENT OF MECHANICAL STRENGTH OF IRON ORE …

Improvement of mechanical strength of iron ore pellets using raw and activated bentonites ... measured by compressing individual pellets between two plates where the speed of the moving plate was 10 mm/min. Tests were performed on 5 pellets, and the average …

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